START WITH THE BEST - Every successful project starts with a solid foundation. These sturdy junction blocks feature a robust, tin-plated brass busbar, a flame-resistant base, and durable stainless steel hardware.TRULY UNIVERSAL -  In order to work wherever you might need it, we designed each busbar to handle up to 300V AC, 48V DC, and 150A at 32V DC (4,800W). So whether your working on a boat, a car, or an RV, we've got you covered.YOU'RE COVERED - What's the first thing that always breaks on a busbar? The cover. They're usually thin, rigid, and brittle. Not these covers. Our covers are flexible, flame-resistant, and aren't held on by tiny, breakable clips or easy to lose nuts.WORKS WITH YOU, NOT AGAINST YOU -  Extra tall cover cutouts give you maximum flexibility with minimal effort. Use whatever gauge wire you need, route your wires from either side, double-stack wires if necessary, the covers will still fit.SIMPLE - Sometimes "more options" just means more difficult. Our power and ground 12 terminals, 4-1/2? distribution block gives you everything you need without overcrowding your system, or your patience. Product Description Why Should You Care About the Details? Every electrical accessory needs clean power and a solid ground. In some situations, this isn’t an unreachable goal, but in others (boats, RVs, aluminum trailers) it can be quite difficult. Using a distribution block is the easiest way to make sure your accessories get what they need, and you get the most out of your hard work. Get the Most Out of Your System Have you ever bought something that looked good online, but ended up being a disappointment? The problem isn’t your eyes or your research, it’s the details: thin materials that look good, but break after one use; universal parts that aren’t so universal; and “features” that actually make the product harder to use. Our busbars are different. We use fire-resistant materials for the base and cover, the busbar is bolted to the base not glued, and we use stainless steel hardware that lasts longer in wet environments. Save Money Let’s be honest, a busbar isn’t a complicated piece of equipment. There are no moving parts, no fancy electronics, and it really has only one job. Of course, you want it to be good at its job, but why should you spend any more than you have to for this one-job-tool? We feel the same way, so we built a busbar that’s good at its job, and costs less than the other guys. What's Included: (1) 12 Terminal Busbar(1) Instruction Manual